/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsEditorOnlyExp/Public/SkeletalMesh/SkeletonEditingTool.h
bool GetProjectionPoint ( const [FInputDeviceRay](API\Runtime\InteractiveToolsFramework\FInputDeviceRay) & InRay, FVector & OutHitPoint ) const